000 03179nam  2200325za 4500
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008150406s2015    nscdb   ob   f000 0 eng d
020 |a978-1-100-25776-1|z978-1-100-25775-4
040 |aCaOODSP|beng
041 |aeng|bfre
043 |an-cn---
0861 |aFs97-18/307E-PDF|zFs97-18/307E
1001 |aHarrison, W. G., |eauthor.
24510|aPrimary production in the Labrador Sea and adjacent waters |h[electronic resource] : |bAtlantic Zone Off-Shelf Monitoring Program 1991-2011 / |cby W.G. Harrison and W.K.W. Li.
24633|aProduction primaire dans la mer du Labrador et les eaux avoisinantes : |bprogramme de monitorage de la zone Atlantique du talus, 1991-2011
260 |aDartmouth, Nova Scotia : |bFisheries and Oceans Canada, |c2015.
300 |aviii, 40 p. : |bgraphs, maps
4901 |aCanadian technical report of hydrography and ocean sciences, |x1488-5417 ; |v307
504 |aIncludes bibliographical references (p. 13-16).
520 |aResults from 20 years (21 missions) of environmental and photophysiological observations of natural phytoplankton populations in the Labrador Sea are reported. Variability in environmental (temperature, nutrients) and biological (phytoplankton biomass, photosynthetic characteristics) were linked to sampling depth, season and geographical location. Time of year of sampling made the greatest contribution to variability of most properties although geography differences were also important. Inter-annual variability was significant but longer term trends were weak or absent. Synoptic satellite ocean colour data have helped to fill in the gaps, due to the limited field sampling, in order to provide a more complete picture of regional productivity. The annual phytoplankton growth cycle in the Labrador Sea is marked by early spring blooms on the Labrador and Greenland shelves, a summer bloom in the central basin and a brief, geographically confined, fall bloom off the Labrador Shelf. Measured and modeled total and new primary productivity in the Labrador Sea is typical of sub-polar regions. To date, there is little evidence of long term changes in productivity in the Labrador Sea despite indications of some nutrient, phytoplankton community structure and photophysiological changes over the past 20 years. Field and satellite data collected in the Northwest Atlantic over the past 2-3 decades, as described here, underpin new model-based estimates of primary productivity that are providing unprecedented spatial and temporal detail of this fundamental ecological process.
530 |aIssued also in printed form.
546 |aText in English, abstract in English and French.
69207|2gccst|aOceanography
7101 |aCanada. |bDepartment of Fisheries and Oceans, |eissuing body.
7760#|tPrimary production in the Labrador Sea and adjacent waters : |w(CaOODSP)9.516004
830#0|aCanadian technical report of hydrography and ocean sciences,|x1488-5417 ; |v307.|w(CaOODSP)9.504781
85640|qPDF|s1.44 MB|uhttps://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs97-18-307-eng.pdf